The belligerents in this conflict met aboard the USS Lackawanna for a failed peace conference. This 
The belligerents in this conflict met aboard the USS Lackawanna for a failed peace conference. This war saw the corvette Esmeralda defeated by the monitor Huáscar, which was later captured at the Battle of Angamos, leading to one side's naval superiority. That nation later annexed Arica, Tacna and Tarapaca after this war, which had begun over a tax dispute involving the Antofagasta and Bolivia Railway. The Treaty of Ancón ended this war, which was fought over guano deposits, giving it the alternate name of the Saltpeter War. For 10 points, name this South American war named for the ocean along whose coastline it was fought.
The belligerents in this conflict met aboard the USS Lackawanna for a failed peace conference.
War of the {Pacific} [accept {Saltpeter War} or {guano war} before either {stuffs} are mentioned]